On Sat, 31 Oct 2020 12:26:25 -0400, ABLE1
wrote:

Hello,

I have a circuit board that has a blown Fuse. The Fuse is a very
small SMD device that is mounted to the board. The device is a color
green if that matters with a capital "B" on the surface.

This is just a curiosity question for my own edification and
maybe for the benefit others.

Is there some chart that would be available to give the ability
to ID the value of this fuse and its parameters??

Then my other comment has a different tone.

Personally I think fuses of this design are a PITA. Yes, it is
smaller and makes for a "clean look" but when one might have been
blown by a possible spike on the line voltage in order to save the
rest of the board then the WHOLE board need to be replaced.

So then what is the point other than making more money.

If it seems that I might sound a bit frazzed, that would be correct.

I just don't understand the designing of this technology type
especially at a input voltage of 120VAC.

I am sure I will be enlightened to the whys and wherefores.
I am prepared for the best and worst.

Thank you very much in advance.

Les





Littelfuse smd 'B' is 0.125A



RL

Matsuo KAH 1005/0402
P 0.20
Q 0.25
R 0.315
S 0.40
T 0.50
U 0.63

V 0.80
1 1.00
W 1.25
X 1.60
2 2.00
Y 2.50


littelfuse 1206 very fast acting ROHS
0466.125 .125 B
0466.200 .200 C
0466.250 .250 D
0466.375 .375 E
0466.500 .500 F
0466.750 .750 G
0466 001. 1.00 H
0466 1.25 1.25 J
0466 01.5 1.50 K
0466 1.75 1.75 L
0466 002. 2.00 N
0466 02.5 2.50 O
0466 003. 3.00 P
0466 004. 4.00 S
0466 005. 5.00 T

littelfuse 1206 very fast acting
0433.125 .125 B
0433.200 .200 C
0433.250 .250 D
0433.375 .375 E
0433.500 .50 F
0433.600 .60 .6
0433.750 .75 G
0433.800 .80 .8
0433 001. 1.0 H
0433 1.25 1.25 J
0433 01.5 1.5 K
0433 1.75 1.75 L
0433 002. 2.0 N
0433 02.5 2.5 O
0433 003. 3.0 P
0433 004. 4.0 S
0433 005. 5.0 T

Littelfuse 1206 fast acting ROHS
429.125 0.125 FB
429.200 0.200 FC
429.250 0.250 FD
429.375 0.375 FE
429.500 0.500 FF
429.750 0.75 FG
429 001 1.00 FH
429 007 7.0 FU
429 007L 7.0 7

1206 delay
0430.500 0.5 TF
0430 001. 1.0 TH
0430 01.5 1.5 TK
0430 002. 2.0 TN
0430 003. 3.0 TP

0603 ultrafast
0434.250 .250 D
0434.375 .375 E
0434.500 .500 F
0434.680 .680 X
0434.750 .750 G
0434 001. 1.00 H
0434 1.25 1.25 J
0434 01.5 1.50 K
0434 1.75 1.75 L
0434 002. 2.00 N
0434 02.5 2.50 O
0434 003. 3.00 P
0434 03.5 3.50 R
0434 004. 4.00 S
0434 005. 5.00 T

Littelfuse 1206 fast
0437.250 .250 D
0437.375 .375 E
0437.500 .500 F
0437.750 .750 G
0437001. 1.00 H
04371.25 1.25 J
043701.5 1.50 K
04371.75 1.75 L
0437002. 2.00 N
043702.5 2.50 O
0437003. 3.00 P
043703.5 3.50 R
0437004. 4.00 S
0437005. 5.00 T
0437007. 7.00 W
0437008. 8.00 X

Littelfuse 0603 ultrafast
0467.250 .25 D
0467.375 .375 E
0467.500 .500 F
0467.750 .750 G
0467 001. 1.00 H
0467 1.25 1.25 J
0467 01.5 1.50 K
0467 1.75 1.75 L
0467 002. 2.00 N
0467 02.5 2.50 O
0467 003. 3.00 P
0467 03.5 3.50 R
0467 004. 4.00 S
0467 005. 5.00 T

littelfuse 1206 slow blow ROhs
0468 001. 1.00 TH
0468 01.5 1.50 TK
0468 002. 2.00 TN
0468 003. 3.00 TP

Littelfuse 1206 delay ROHS
0468.500 TF
001. TH
01.5 TK
002. TN
02.5 TO
003. TP

Littelfuse 0402 very fast
0435.250 .25 +
0435.375 .375 :
0435.500 .5 o
0435.750 .75 %
0435 001. 1 l
0435 1.25 1.25 8
0435 01.5 1.5 blank
0435 1.75 1.75 X
0435 002. 2 O

vishay 0603
500 mA F
630 mA CT
750 mA G
800 mA CV
1.0 A H
1.25 A J
1.5 A K
1.6 A EF
1.75 A L
2.0 A N
2.5 A O
3.0 A P
3.15 A
3.5 A R
4.0 A S
5.0 A T

vishay 0805
500 mA F
630 mA CT
750 mA G
800 mA CV
1.0 A H
1.25 A J
1.5 A K
1.6 A
1.75 A
2.0 A N
2.5 A O
3.0 A P
3.15 A EL
3.5 A R
4.0 A S
5.0 A T

vishay 1206
500 mA F
630 mA CT
750 mA G
800 mA CV
1.0 A H
1.25 A J
1.5 A K
1.6 A EF
1.75 A L
2.0 A N
2.5 A O
3.0 A P
3.15 A EL
3.5 A R
4.0 A S
5.0 A T
6.3 A ET
.........................

0468 littelfuse 1206 slow
001. H
1.25 J
01.5 K
002. N
02.5 O
003. P
03.5 R
004. S
005. T
006. U
007. W
008. X

SF bournes 1206
F = 0.50
K = 0.80
L = 1.00
M = 1.25
P = 1.50
S = 2.00
T = 2.50
3 = 3.00
W = 4.00
Y = 5.00
Z = 7.00

CCH bussman 1206
CC12H1A 1 H
CC12H1.5A 1.5 K
CC12H2A 2 N
CC12H2.5A 2.5 O
CC12H3A 3 P
CC12H3.5A 3.5 R
CC12H4A 4 S
CC12H4.5A 4.5 X
CC12H5A 5 T

2410 TE 1206
2410SFV0.50FM C
2410SFV0.63FM S 0.6
2410SFV0.75FM/125-2 D 0.8
2410SFV1.00FM/125-2 E 1.0
2410SFV1.25FM/125-2 F 1.3
2410SFV1.50FM/125-2 G 1.5
2410SFV2.00FM/125-2 I 2.0
2410SFV2.50FM/125-2 J 2.5
2410SFV3.00FM/125-2 K 3.0
2410SFV3.15FM/125-2 V 3.2
2410SFV3.50FM/125-2 L 3.5
2410SFV4.00FM/125-2 M 4.0
2410SFV5.00FM/125-2 N 5.0
2410SFV6.30FM/125-2 O 6.3
2410SFV7.00FM/125-2 P 7.0
2410SFV8.00FM/125-2 R 8.0
2410SFV10.0FM/125-2 Q 10.0
2410SFV12.0FM/065-2 X 12.0
2410SFV15.0FM/065-2 Y 15
2410SFV20.0FM/065-2 Z 20